Powertrain, generic · Hybrid propulsion

P0A62 Drive Motor A Phase V Current High

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P0A62 signals overcurrent in phase V of drive motor A. Hyundai lists it in bulletin 17-01-057-1 for the 2017 Ioniq Hybrid next to P0A5F, P0A65 and the isolation fault P0AA6: the bulletin traces them to coolant leaking inside the traction motor and checks the high-voltage insulation first. Check Engine and hybrid lights came on, acceleration weakened and the air conditioning stopped. The dealer first runs an isolation breakdown test with the scan tool, then checks the motor for coolant and replaces it if needed. A shorted turn or a damaged phase lead to ground gives the same picture on other vehicles. A Hyundai patent describes two measured phases with the third calculated. P0A61 is the low side, P0A60 the general V code, P0A5F and P0A65 phases U and W.

Likely causes

Coolant inside the traction motor with loss of insulation (Hyundai Ioniq Hybrid)
Phase V lead or winding shorted to ground or to another phase
Inverter power stage fault in phase V

Symptoms

  • Check Engine and hybrid warning lights
  • Weak acceleration, air conditioning inoperative

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€500–7,000
Time2–10 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

drive motor a phase vinverter

Related codes

P0A60P0A61P0A5FP0A65P0AA6

References: static.nhtsa.gov, patents.google.com, law.cornell.edu.